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Light Source

Definition

A light source is an object or device that emits light. It provides illumination and allows us to see objects in our environment.

Analogy

Think of a light source as the sun on a sunny day. Just like how the sun illuminates everything around us, a light source provides the necessary light for us to see things clearly.

Related terms

Reflection: The bouncing back of light when it hits a surface.

Refraction: The bending of light as it passes through different mediums.

Intensity: The brightness or strength of a light source.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.